You want an extra blank row? Use on a new row. It'll get converted to a space but preserve it in the markup. Otherwise, you can add 2 spaces at the end of a row to make ut linewrap there.
For example,
this line wraps but is all one paragraph
I didn't learn of any rhyme or reason to it in German when I took classes on it. In fact, in a few cases, the gender changes the meaning of the word. Der See und die See, for example. One means lake and the other means sea/ocean.